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Aggiunto metodo TBaseisamfile::is_valid(). Ritorna NOERR se il file e'

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Ok.


git-svn-id: svn://10.65.10.50/trunk@2155 c028cbd2-c16b-5b4b-a496-9718f37d4682
This commit is contained in:
angelo 1995-11-15 17:51:04 +00:00
parent 80e600f803
commit 169a54a270
2 changed files with 14 additions and 1 deletions
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12
include/isam.cpp
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@ -1056,6 +1056,18 @@ int TBaseisamfile::_close()
return err;
}
int TBaseisamfile::is_valid()
{ // Ritorna 0 se il file puo' essere aperto senza errori
CHECKS(filehnd() == NULL, "File already open ", (const char*)filename());
int err = NOERR;
getisfd(_isamfile,num());
if ((filehnd()->fhnd = DB_open(filehnd()->d->SysName,0)) >= 0)
DB_close(filehnd()->fhnd);
else
err = get_error(filehnd()->fhnd);
relisfd(_isamfile);
return err;
}
///////////////////////////////////////////////////////////
// TLocalisamfile

3
include/isam.h
View File

@ -208,7 +208,7 @@ protected:
void recover();
int _open(unsigned int mode = _manulock); // Apre isam file con lock
int _close();
int _close();
const char* filename() const;
public:
@ -245,6 +245,7 @@ public:
void indexon(); // Accende gli indici
void indexoff(); // Spegne gli indici
int status() const { return _lasterr; } // Ritorna _lasterr
int is_valid(); // Ritorna 0 se il file e' valido
TRectype& curr() const {return *_current;} // Ritorna puntatore a record corrente
bool eof() const { return status() == _iseof || status() == _isemptyfile;} // Vero se siamo a fine file
bool bof() const { return status() == _isbof || status() == _isemptyfile;} // Vero se siamo a inizio file